EP0151114A1 - Acid based variable viscosity compositions such as corrosion and grease removers and polishers. - Google Patents
Acid based variable viscosity compositions such as corrosion and grease removers and polishers.Info
- Publication number
- EP0151114A1 EP0151114A1 EP83902583A EP83902583A EP0151114A1 EP 0151114 A1 EP0151114 A1 EP 0151114A1 EP 83902583 A EP83902583 A EP 83902583A EP 83902583 A EP83902583 A EP 83902583A EP 0151114 A1 EP0151114 A1 EP 0151114A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- set forth
- weight
- level
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
Definitions
- the present invention is concerned with improved, acid-based corrosion, grease removal and polishing compositions for treating metallic surfaces and objects. More particularly, it is concerned with such compositions which are compounded so as to substantially prevent oxidation-reduction reactions that would normally take place at a metallic surface, and allow only acid attack of the oxides on the metal.
- the compositions hereof may include polyvinyl pyrrolidone as a viscosity control agent and inhibitor, a derivative of hydrogen tated tallow as an emulsifier, and an N-substituted oxazolidine as an acid inhibitor.
- compositions for removing corrosion from metallic surfaces and objects have long been available.
- corrosion metal oxides
- Such materials are acid based, i.e., they rely upon an acidic attack in order to remove corrosion.
- compositions of the present invention overcomes the problems noted above, and provides greatly improved, flowable, aqueous, highly penetrating compositions of acidic pH which are effective for polishing and removal of corrosion from metallic surfaces, and also to degrease the same.
- the compositions of the present invention may include respective quantities of an acid, an organic compound having a nitrogen, oxygen or sulfur atom therein, an alcohol or other organic solvent, water and at least one emulsifier.
- the acid component is selected from the group consisting of hydrochloric, sulfuric, phosphoric, acetic, citric, nitric, boric and mixtures thereof.
- the acid is further preferably present at a level of from about 2% to 95% by weight, and more preferably from about 5% to 37% by weight.
- the organic compound is advantageously selected from the group consisting of N-substituted oxazolidines (most preferably N-(2-hydroxyethyl) oxazolidine), the p-alkyl benzyl pyridine chlorides, phenylthiourea, 2-mercaptobenzothiazole, di-orthotolyl-thiourea, pyridine, quinoline, decylamine, the dibenzyl sulf oxides, 2-butyne-1, 4-diol, 1-hexyne 3-ol, 4-ethyl-1-octyne-3-ol, decyclamine, soyaamine, octadecylamine, trimethylsoyaammonium chloride, trimethyloctadecylammonium chloride, trimethyldodecyl ammonium chloride, trimethyltallowammonium chloride, N-coco-1, 3-diaminopropane, the
- Such compounds should be used at a level of from about 0.01% to 20% by weight, and more preferably from about .5% to 5% by weight.
- the alcohol component is most preferably 1-pro ⁇ anol, but other alcohols could also be employed.
- other alcohols refers to an alcohol having an alkyl group with from about 1 to 10 carbon atoms, inclusive.
- the alcohol should be used at a level of up to 40% by weight, and most preferably at a level of about 1 to 8% by weight.
- the water should be present at a level of from about 30% to 80% by weight, and most advantageously at a level of from about 50% to 80% by weight.
- the most preferred emulsifiers for use in the invention are selected from the group consisting of the derivatives of hydrogenated tallow (e.g., N, N', N'-tris (2-hydroxy- ethyl)-N-tallow-1, 3-diaminopropane or amine acetate hydrogenated tallow), polyoxyethylene ethers, polyoxyethylene ester alcohols, polyoxyethylene esters of mixed fatty and resin acids and mixtures thereof, although other specific types referred to hereinafter also have utility.
- the total amount of emulsifier present in the composition should be from about 0.1% to 15% by weight, and more preferably from about .5% to 5% by weight.
- a viscosity control agent can also be used in the compositions hereof to give variations in viscosity.
- Such viscosity control has heretofore proved to be difficult or impossible to obtain in acidic compositions, inasmuch as most conventional thickeners tend to flocculate at low pH.
- the control agents of the invention should be selected from the group consisting of polyvinylpyrrolidone and the allylamine emulsion polymers.
- the pyrrolidone is preferred, however, inasmuch as it also acts as a corrosion inhibitor on metallic surfaces.
- the viscosity control agent should be used at a level of up to about 35% by weight, and most preferably at a level of from about 0.5% to 5% by weight.
- a synergistic effect is observed by the use of the mixture of polyvinyl pyrrolidone, Ethoduomeen T/13, and N-(2-hydroxyethyl)-oxazolidine as a corrosion inhibitor in preventing base metal attack, inasmuch as the attack with the preferred mixture is less than that of any of the individual corrosion inhibitors.
- a mild abrasive such as activated silica gel (at a level of up to about 10% by weight) can be employed.
- Perfumes and coloring agents can be added as desired.
- the system can be modified for corrosion removal on metal surfaces having a heavy grease or oil coating by preparing a two-phase emulsified system fay the addition of toluene or related organic solvents.
- the single feature is a graphical representation depicting the extent of base metal attack when using a commercially available corrosion remover, 10% HCl, and the preferred corrosion removing composition of the invention.
- the most preferred rust removal compositions in accordance with the present, invention contain commercial hydrochloric acid, commercial phosphoric acid, 1-propanol, N-(2 hydroxyethyl) oxazolidine, water, a thickening agent, and N,N', N'-tris (2-hydroxyethyl)-N-tallow-1, 3-diaminopropane as an emulsifier.
- the following table sets forth the single most preferred rust removal composition, as well as ranges of use of the above identified components.
- the oxazolidine base metal inhibitor component of Table I is prepared by slowly adding, with mixing, 435.7 grams of formaldehyde to a beaker containing 564.3 grams of diethanolamine. After all formaldehyde is added, the mixture should be stirred for an additional hour.
- a base metal inhibitor component can be produced as the reaction product of a lower aldehyde (i.e., containing from about 1-4 carbon atoms) and an alkanolamine (containing one or more alkyl group each having from about 2-8 carbon atoms).
- a lower aldehyde i.e., containing from about 1-4 carbon atoms
- an alkanolamine containing one or more alkyl group each having from about 2-8 carbon atoms
- a beaker containing 590 grams of water is provided.
- Ten grams of the Ethoduomeen T/13 hydrogenated tallow emulsifier, 270 grams hydrochloric acid, 40 grams phosphoric acid, and 50 grams of 1-propanol are all added to the beaker, with continual mixing.
- the mixture is then heated to 50° C.; and 30 grams polyvinylpyrrolidine is slowly added thereto. Mixing is continued until all of the polymer has dissolved.
- the drawing graphically illustrates the inhibition against base metal attack provided with the preferred composition of Table I.
- a commercially available corrosion remover sold under the designation "Naval Jelly” was tested, along with a solution of 10% hydrochloric acid, and the preferred composition hereof.
- testing conditions were identical, and the extent of attack on a base metal substrate was measured.
- the extent of such attack is very high with the Naval Jelly and hydrochloric acid, but is significantly lower with the preferred inhibitor composition of the invention.
- emulsifier As noted above, a number of different materials can be employed for the various components. With respect to the emulsifier (s), surfactants available from ICI Americas, Inc., Wilmington, Delaware, and Armak Chemicals Division, Chicago, Illinois, can be employed in lieu of or in addition to the preferred tallow based emulsifiers. An exemplary list of such surfactants is provided in Table III.
- compositions of the invention are effective to remove corrosion from base metallic surfaces while substantially preventing oxidation-reduction reactions with the metal itself.
- grease removal is enhanced by virtue of the presence of a single phase, aqueous system.
- Use of the preferred single phase system also enhances the penetration of corrosion where the latter is present.
- Representative metals which can be cleaned and/ or degreased using the compositions hereof include iron and steel, bronze, brass, copper, monel, nickel, chromium plated metals and aluminum.
- a cleaner for tubes of boilers may also be provided by incorporting in the formulation a high foaming agent plus thickeners such as polyvinylpyrrolidone to improve wall adherence.
- An additive such as Arlatone G may also be included as desired to help prevent surface rerusting.
- This type of corrosion remover is advantageous in that a small amount will cover a large surface area and does not require heating to permit the corrosion removal action to take place. Also, since all components are water soluble, removal of the corrosion remover can be performed by flushing water through the system.
- An exemplary formulation of a- composition containing at least one foaming agent and a thickener is as follows:
- the preferred boiler tube cleaner is prepar ed in the same manner as the rust remover and cleaner/ polisher descr ibed above .
- the Arlatone G component is added initially with the HCl , oxazolidine and Ethoduomeen .
- An additional use and formulation for the removal of carbonate deposits and scales for the application of salts to non-metallic surfaces can be made by using the above formulations with the deletion of the base metal corrosion inhibitor .
- This formulation enhances surface deposit removal without penetration to the base .
- An exemplary formulation of a composi tion containing at least one degreasing agent and a thickener is as follows: Other acids such as sulfuric, nitric, phosphoric, acetic, citric, boric, or mixtures thereof can be substituted as well as other salts such as sodium perborate, tri-sodium phosphate, ammonium acetate, sodium chloride, etc.
Abstract
Une composition améliorée, à pénétration élevée, éliminant la rouille et/ou la graisse des surfaces métalliques est inhibée chimiquement pour empêcher sensiblement les réactions d'oxydation-réduction avec un substrat métallique et limiter l'action de la composition à une attaque chimique sur la corrosion. La composition se compose de préférence d'une dispersion à phase unique et comprend des quantités respectives d'un acide tel qu'un acide chlorhydrique et un acide phosphorique, un composé organique contenant un atome d'azote, d'oxygène ou de soufre tel que du N-(2-hydroxyéthyle) oxazolidine, un alcool ou un autre solvant organique éliminant la graisse, de l'eau et un ou plusieurs émulsifiants (par exemple un dérivé de suif hydrogéné) pour stabiliser et abaisser la tension de surface de la composition résultante. Ces compositions peuvent être obtenues sous la forme de liquides ou avec un agent régulateur de la viscosité tel qu'un polymère de vynile pyrrolidone, conférant à la composition une consistance pâteuse qui en permet une utilisation aisée sur des surfaces verticales. Dans des variantes, ces compositions peuvent comprendre un abrasif doux tel qu'un gel de silice activé.An improved, high penetration composition that removes rust and / or grease from metal surfaces is chemically inhibited to substantially prevent oxidation-reduction reactions with a metal substrate and limit the action of the composition to chemical attack on the metal. corrosion. The composition preferably consists of a single phase dispersion and comprises respective amounts of an acid such as hydrochloric acid and phosphoric acid, an organic compound containing a nitrogen, oxygen or sulfur atom such than N- (2-hydroxyethyl) oxazolidine, an alcohol or other organic solvent that removes fat, water and one or more emulsifiers (for example a hydrogenated tallow derivative) to stabilize and lower the surface tension of the resulting composition. These compositions can be obtained in the form of liquids or with a viscosity regulating agent such as a pyrrolidone vinyl polymer, giving the composition a pasty consistency which allows it to be easily used on vertical surfaces. Alternatively, these compositions may include a mild abrasive such as an activated silica gel.
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1983/001014 WO1985000379A1 (en) | 1983-07-06 | 1983-07-06 | Acid based variable viscosity compositions such as corrosion and grease removers and polishers |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0151114A1 true EP0151114A1 (en) | 1985-08-14 |
EP0151114A4 EP0151114A4 (en) | 1985-12-05 |
EP0151114B1 EP0151114B1 (en) | 1990-04-04 |
Family
ID=22175326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19830902583 Expired EP0151114B1 (en) | 1983-07-06 | 1983-07-06 | Acid based variable viscosity compositions such as corrosion and grease removers and polishers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0151114B1 (en) |
JP (1) | JPS60501817A (en) |
DE (1) | DE3381414D1 (en) |
WO (1) | WO1985000379A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5460797A (en) * | 1991-05-08 | 1995-10-24 | Streck Laboratories, Inc. | Method for fixing tissues and cells for analysis using oxazolidine compounds |
MY139405A (en) * | 1998-09-28 | 2009-09-30 | Ibiden Co Ltd | Printed circuit board and method for its production |
ATE407234T1 (en) * | 2005-09-15 | 2008-09-15 | Delmet Disossidazione Elettron | METHOD FOR PICKLING METAL ITEMS, PARTICULARLY FOOD BARRELS |
RU2532921C1 (en) * | 2013-09-12 | 2014-11-20 | Общество с ограниченной ответственностью "СИКМО" (ООО "СИКМО") | Anticorrosion detergent for washing internal and external metal surfaces |
RU2532919C1 (en) * | 2013-09-12 | 2014-11-20 | Общество с ограниченной ответственностью "СИКМО" (ООО "СИКМО") | Foamless detergent for washing metal surfaces |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2737491A (en) * | 1952-06-13 | 1956-03-06 | Cities Service Res & Dev Co | Method of inhibiting corrosion of metals |
US3575881A (en) * | 1967-12-26 | 1971-04-20 | Dow Chemical Co | Method of gelling ionic liquids and gelled composition |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2524825A (en) * | 1945-09-14 | 1950-10-10 | Socony Vacuum Oil Co Inc | Metal cleaning composition |
US2814593A (en) * | 1953-12-18 | 1957-11-26 | Gen Aniline & Film Corp | Corrosion inhibition |
US3113113A (en) * | 1958-11-07 | 1963-12-03 | Armour & Co | Corrosion inhibitor compositions |
FR2209858A3 (en) * | 1972-12-07 | 1974-07-05 | Colloides Ind Fs | Liq. decarbonising and scouring compsns. - contg. polyvinyl pyrrolidone or its derivs, to prevent galvanic corrosion |
US4247344A (en) * | 1975-10-15 | 1981-01-27 | Nippon Steel Corporation | Rust preventing treatment of metal-plated steel materials |
JPS5415485A (en) * | 1977-07-06 | 1979-02-05 | Masami Kobayashi | Creamy derust detergent |
US4216032A (en) * | 1978-09-27 | 1980-08-05 | Stephen Gradowski | Oil composition and method for treating phosphated metal surfaces |
US4325744A (en) * | 1980-07-25 | 1982-04-20 | The United States Of America As Represented By The Secretary Of The Navy | Method and composition for cleaning metal surfaces with a film-forming composition |
-
1983
- 1983-07-06 EP EP19830902583 patent/EP0151114B1/en not_active Expired
- 1983-07-06 JP JP50270583A patent/JPS60501817A/en active Pending
- 1983-07-06 DE DE8383902583T patent/DE3381414D1/en not_active Expired - Lifetime
- 1983-07-06 WO PCT/US1983/001014 patent/WO1985000379A1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2737491A (en) * | 1952-06-13 | 1956-03-06 | Cities Service Res & Dev Co | Method of inhibiting corrosion of metals |
US3575881A (en) * | 1967-12-26 | 1971-04-20 | Dow Chemical Co | Method of gelling ionic liquids and gelled composition |
Non-Patent Citations (1)
Title |
---|
See also references of WO8500379A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0151114A4 (en) | 1985-12-05 |
EP0151114B1 (en) | 1990-04-04 |
WO1985000379A1 (en) | 1985-01-31 |
JPS60501817A (en) | 1985-10-24 |
DE3381414D1 (en) | 1990-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4944181B2 (en) | Use of quaternary ammonium carbonate and quaternary ammonium bicarbonate as anticorrosives, methods for inhibiting corrosion, and anticorrosive coatings using these agents | |
EP0479908B1 (en) | Improved aqueous cleaner/degreaser compositions | |
US4518519A (en) | Acid based variable viscosity compositions such as corrosion and grease removers and polishes | |
US4180469A (en) | Dithiocarbamate sulfonium salt inhibitor composition | |
RU2627377C1 (en) | Composition for dissoluting corrosive deposits | |
EP0151114B1 (en) | Acid based variable viscosity compositions such as corrosion and grease removers and polishers | |
US2199712A (en) | Method of cleaning and preparing metal for paint | |
US2700654A (en) | Cleaning solution and method | |
US3041285A (en) | Composition for cleaning and polishing aluminum and aluminum alloys | |
US2886477A (en) | Metal cleaning and phosphating composition | |
JP2838115B2 (en) | Rust prevention composition for metal | |
US2524825A (en) | Metal cleaning composition | |
US3546124A (en) | Cleansing solutions | |
US3056746A (en) | Acid pickling composition with inhibitor | |
JP2014084475A (en) | Anticorrosion liquid for organic acid cleaning | |
US3579447A (en) | Method of removing copper deposits from ferrous metal surfaces using hydroxyalkyl thiourea | |
US2166476A (en) | Material for cleaning and preparing metal for paint | |
US3585142A (en) | Method of removing copper-containing incrustations from ferrous metal surfaces using an aqueous acid solution of aminoalkyl thiourea | |
EP0013462B1 (en) | Dithiocarbamate/sulfonium salt corrosion inhibitor composition and its use in acidic cleaning solutions | |
SU876692A1 (en) | Composition for removing paint-varnish coatings | |
US4832865A (en) | Composition containing non-ionic surfactant | |
US2599729A (en) | Noncorrosive metal cleaning composition | |
CA1047357A (en) | Aqueous paraffin-naphthene metal cleaning composition | |
JPS60133074A (en) | Paint stripper composition | |
US4941925A (en) | Cleaner for high pressure cleaning of ferrous and non-ferrous material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB Designated state(s): DE FR GB |
|
17P | Request for examination filed |
Effective date: 19850731 |
|
17Q | First examination report despatched |
Effective date: 19861010 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JARGOSCH, REINER E. Inventor name: LOTT PETER F. |
|
DIN1 | Information on inventor provided before grant (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: JARGOSCH, REINER Owner name: LOTT, PETER F., DR. |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JARGOSCH, REINER Inventor name: LOTT, PETER F., DR. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19900404 |
|
REF | Corresponds to: |
Ref document number: 3381414 Country of ref document: DE Date of ref document: 19900510 |
|
EN | Fr: translation not filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19920611 Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19920626 Year of fee payment: 10 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19930706 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19930706 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19940401 |